DZ-500-2S
Nthawi zambiri, makina opangira vacuum achipinda chapawiri amachotsa mpweya wonse mkati mwa phukusi, kotero kuti zinthu zomwe zili m'thumba zimatha kusungidwa kwa nthawi yayitali.
Ndi zipinda ziwiri zomwe zimagwira ntchito mosinthana mosinthana, makina onyamula vacuum wa Double chamber ndiwothandiza kwambiri kuposa makina anthawi zonse a vacuum.